#!/usr/bin/env bash
	# shellcheck disable=SC2268
	

	# The files installed by the script conform to the Filesystem Hierarchy Standard:
	# https://wiki.linuxfoundation.org/lsb/fhs
	

	# The URL of the script project is:
	# https://github.com/v2fly/fhs-install-v2ray
	

	# The URL of the script is:
	# https://raw.githubusercontent.com/v2fly/fhs-install-v2ray/master/install-release.sh
	

	# If the script executes incorrectly, go to:
	# https://github.com/v2fly/fhs-install-v2ray/issues
	

	# You can set this variable whatever you want in shell session right before running this script by issuing:
	# export DAT_PATH='/usr/local/share/v2ray'
	DAT_PATH=${DAT_PATH:-/usr/local/share/v2ray}
	

	# You can set this variable whatever you want in shell session right before running this script by issuing:
	# export JSON_PATH='/usr/local/etc/v2ray'
	JSON_PATH=${JSON_PATH:-/usr/local/etc/v2ray}
	

	# Set this variable only if you are starting v2ray with multiple configuration files:
	# export JSONS_PATH='/usr/local/etc/v2ray'
	

	# Set this variable only if you want this script to check all the systemd unit file:
	# export check_all_service_files='yes'
	

	curl() {
	  $(type -P curl) -L -q --retry 5 --retry-delay 10 --retry-max-time 60 "$@"
	}
	

	systemd_cat_config() {
	  if systemd-analyze --help | grep -qw 'cat-config'; then
	    systemd-analyze --no-pager cat-config "$@"
	    echo
	  else
	    echo "${aoi}~~~~~~~~~~~~~~~~"
	    cat "$@" "$1".d/*
	    echo "${aoi}~~~~~~~~~~~~~~~~"
	    echo "${red}warning: ${green}The systemd version on the current operating system is too low."
	    echo "${red}warning: ${green}Please consider to upgrade the systemd or the operating system.${reset}"
	    echo
	  fi
	}
	

	check_if_running_as_root() {
	  # If you want to run as another user, please modify $UID to be owned by this user
	  if [[ "$UID" -ne '0' ]]; then
	    echo "WARNING: The user currently executing this script is not root. You may encounter the insufficient privilege error."
	    read -r -p "Are you sure you want to continue? [y/n] " cont_without_been_root
	    if [[ x"${cont_without_been_root:0:1}" = x'y' ]]; then
	      echo "Continuing the installation with current user..."
	    else
	      echo "Not running with root, exiting..."
	      exit 1
	    fi
	  fi
	}
	

	identify_the_operating_system_and_architecture() {
	  if [[ "$(uname)" == 'Linux' ]]; then
	    case "$(uname -m)" in
	      'i386' | 'i686')
	        MACHINE='32'
	        ;;
	      'amd64' | 'x86_64')
	        MACHINE='64'
	        ;;
	      'armv5tel')
	        MACHINE='arm32-v5'
	        ;;
	      'armv6l')
	        MACHINE='arm32-v6'
	        grep Features /proc/cpuinfo | grep -qw 'vfp' || MACHINE='arm32-v5'
	        ;;
	      'armv7' | 'armv7l')
	        MACHINE='arm32-v7a'
	        grep Features /proc/cpuinfo | grep -qw 'vfp' || MACHINE='arm32-v5'
	        ;;
	      'armv8' | 'aarch64')
	        MACHINE='arm64-v8a'
	        ;;
	      'mips')
	        MACHINE='mips32'
	        ;;
	      'mipsle')
	        MACHINE='mips32le'
	        ;;
	      'mips64')
	        MACHINE='mips64'
	        ;;
	      'mips64le')
	        MACHINE='mips64le'
	        ;;
	      'ppc64')
	        MACHINE='ppc64'
	        ;;
	      'ppc64le')
	        MACHINE='ppc64le'
	        ;;
	      'riscv64')
	        MACHINE='riscv64'
	        ;;
	      's390x')
	        MACHINE='s390x'
	        ;;
	      *)
	        echo "error: The architecture is not supported."
	        exit 1
	        ;;
	    esac
	    if [[ ! -f '/etc/os-release' ]]; then
	      echo "error: Don't use outdated Linux distributions."
	      exit 1
	    fi
	    # Do not combine this judgment condition with the following judgment condition.
	    ## Be aware of Linux distribution like Gentoo, which kernel supports switch between Systemd and OpenRC.
	    ### Refer: https://github.com/v2fly/fhs-install-v2ray/issues/84#issuecomment-688574989
	    if [[ -f /.dockerenv ]] || grep -q 'docker\|lxc' /proc/1/cgroup && [[ "$(type -P systemctl)" ]]; then
	      true
	    elif [[ -d /run/systemd/system ]] || grep -q systemd <(ls -l /sbin/init); then
	      true
	    else
	      echo "error: Only Linux distributions using systemd are supported."
	      exit 1
	    fi
	    if [[ "$(type -P apt)" ]]; then
	      PACKAGE_MANAGEMENT_INSTALL='apt -y --no-install-recommends install'
	      PACKAGE_MANAGEMENT_REMOVE='apt purge'
	      package_provide_tput='ncurses-bin'
	    elif [[ "$(type -P dnf)" ]]; then
	      PACKAGE_MANAGEMENT_INSTALL='dnf -y install'
	      PACKAGE_MANAGEMENT_REMOVE='dnf remove'
	      package_provide_tput='ncurses'
	    elif [[ "$(type -P yum)" ]]; then
	      PACKAGE_MANAGEMENT_INSTALL='yum -y install'
	      PACKAGE_MANAGEMENT_REMOVE='yum remove'
	      package_provide_tput='ncurses'
	    elif [[ "$(type -P zypper)" ]]; then
	      PACKAGE_MANAGEMENT_INSTALL='zypper install -y --no-recommends'
	      PACKAGE_MANAGEMENT_REMOVE='zypper remove'
	      package_provide_tput='ncurses-utils'
	    elif [[ "$(type -P pacman)" ]]; then
	      PACKAGE_MANAGEMENT_INSTALL='pacman -Syu --noconfirm'
	      PACKAGE_MANAGEMENT_REMOVE='pacman -Rsn'
	      package_provide_tput='ncurses'
	    else
	      echo "error: The script does not support the package manager in this operating system."
	      exit 1
	    fi
	  else
	    echo "error: This operating system is not supported."
	    exit 1
	  fi
	}
	

	## Demo function for processing parameters
	judgment_parameters() {
	  while [[ "$#" -gt '0' ]]; do
	    case "$1" in
	      '--remove')
	        if [[ "$#" -gt '1' ]]; then
	          echo 'error: Please enter the correct parameters.'
	          exit 1
	        fi
	        REMOVE='1'
	        ;;
	      '--version')
	        VERSION="${2:?error: Please specify the correct version.}"
	        break
	        ;;
	      '-c' | '--check')
	        CHECK='1'
	        break
	        ;;
	      '-f' | '--force')
	        FORCE='1'
	        break
	        ;;
	      '-h' | '--help')
	        HELP='1'
	        break
	        ;;
	      '-l' | '--local')
	        LOCAL_INSTALL='1'
	        LOCAL_FILE="${2:?error: Please specify the correct local file.}"
	        break
	        ;;
	      '-p' | '--proxy')
	        if [[ -z "${2:?error: Please specify the proxy server address.}" ]]; then
	          exit 1
	        fi
	        PROXY="$2"
	        shift
	        ;;
	      *)
	        echo "$0: unknown option -- -"
	        exit 1
	        ;;
	    esac
	    shift
	  done
	}
	

	install_software() {
	  package_name="$1"
	  file_to_detect="$2"
	  type -P "$file_to_detect" > /dev/null 2>&1 && return
	  if ${PACKAGE_MANAGEMENT_INSTALL} "$package_name"; then
	    echo "info: $package_name is installed."
	  else
	    echo "error: Installation of $package_name failed, please check your network."
	    exit 1
	  fi
	}
	

	get_version() {
	  # 0: Install or update V2Ray.
	  # 1: Installed or no new version of V2Ray.
	  # 2: Install the specified version of V2Ray.
	  if [[ -n "$VERSION" ]]; then
	    RELEASE_VERSION="v${VERSION#v}"
	    return 2
	  fi
	  # Determine the version number for V2Ray installed from a local file
	  if [[ -f '/usr/local/bin/v2ray' ]]; then
	    VERSION="$(/usr/local/bin/v2ray -version | awk 'NR==1 {print $2}')"
	    CURRENT_VERSION="v${VERSION#v}"
	    if [[ "$LOCAL_INSTALL" -eq '1' ]]; then
	      RELEASE_VERSION="$CURRENT_VERSION"
	      return
	    fi
	  fi
	  # Get V2Ray release version number
	  TMP_FILE="$(mktemp)"
	  if ! curl -x "${PROXY}" -sS -H "Accept: application/vnd.github.v3+json" -o "$TMP_FILE" 'https://api.github.com/repos/v2fly/v2ray-core/releases/latest'; then
	    "rm" "$TMP_FILE"
	    echo 'error: Failed to get release list, please check your network.'
	    exit 1
	  fi
	  RELEASE_LATEST="$(sed 'y/,/\n/' "$TMP_FILE" | grep 'tag_name' | awk -F '"' '{print $4}')"
	  "rm" "$TMP_FILE"
	  RELEASE_VERSION="v${RELEASE_LATEST#v}"
	  # Compare V2Ray version numbers
	  if [[ "$RELEASE_VERSION" != "$CURRENT_VERSION" ]]; then
	    RELEASE_VERSIONSION_NUMBER="${RELEASE_VERSION#v}"
	    RELEASE_MAJOR_VERSION_NUMBER="${RELEASE_VERSIONSION_NUMBER%%.*}"
	    RELEASE_MINOR_VERSION_NUMBER="$(echo "$RELEASE_VERSIONSION_NUMBER" | awk -F '.' '{print $2}')"
	    RELEASE_MINIMUM_VERSION_NUMBER="${RELEASE_VERSIONSION_NUMBER##*.}"
	    # shellcheck disable=SC2001
	    CURRENT_VERSIONSION_NUMBER="$(echo "${CURRENT_VERSION#v}" | sed 's/-.*//')"
	    CURRENT_MAJOR_VERSION_NUMBER="${CURRENT_VERSIONSION_NUMBER%%.*}"
	    CURRENT_MINOR_VERSION_NUMBER="$(echo "$CURRENT_VERSIONSION_NUMBER" | awk -F '.' '{print $2}')"
	    CURRENT_MINIMUM_VERSION_NUMBER="${CURRENT_VERSIONSION_NUMBER##*.}"
	    if [[ "$RELEASE_MAJOR_VERSION_NUMBER" -gt "$CURRENT_MAJOR_VERSION_NUMBER" ]]; then
	      return 0
	    elif [[ "$RELEASE_MAJOR_VERSION_NUMBER" -eq "$CURRENT_MAJOR_VERSION_NUMBER" ]]; then
	      if [[ "$RELEASE_MINOR_VERSION_NUMBER" -gt "$CURRENT_MINOR_VERSION_NUMBER" ]]; then
	        return 0
	      elif [[ "$RELEASE_MINOR_VERSION_NUMBER" -eq "$CURRENT_MINOR_VERSION_NUMBER" ]]; then
	        if [[ "$RELEASE_MINIMUM_VERSION_NUMBER" -gt "$CURRENT_MINIMUM_VERSION_NUMBER" ]]; then
	          return 0
	        else
	          return 1
	        fi
	      else
	        return 1
	      fi
	    else
	      return 1
	    fi
	  elif [[ "$RELEASE_VERSION" == "$CURRENT_VERSION" ]]; then
	    return 1
	  fi
	}
	

	download_v2ray() {
	  DOWNLOAD_LINK="https://ghproxy.com/https://github.com/v2fly/v2ray-core/releases/download/$RELEASE_VERSION/v2ray-linux-$MACHINE.zip"
	  echo "Downloading V2Ray archive: $DOWNLOAD_LINK"
	  if ! curl -x "${PROXY}" -R -H 'Cache-Control: no-cache' -o "$ZIP_FILE" "$DOWNLOAD_LINK"; then
	    echo 'error: Download failed! Please check your network or try again.'
	    return 1
	  fi
	  echo "Downloading verification file for V2Ray archive: $DOWNLOAD_LINK.dgst"
	  if ! curl -x "${PROXY}" -sSR -H 'Cache-Control: no-cache' -o "$ZIP_FILE.dgst" "$DOWNLOAD_LINK.dgst"; then
	    echo 'error: Download failed! Please check your network or try again.'
	    return 1
	  fi
	  if [[ "$(cat "$ZIP_FILE".dgst)" == 'Not Found' ]]; then
	    echo 'error: This version does not support verification. Please replace with another version.'
	    return 1
	  fi
	

	  # Verification of V2Ray archive
	  for LISTSUM in 'md5' 'sha1' 'sha256' 'sha512'; do
	    SUM="$(${LISTSUM}sum "$ZIP_FILE" | sed 's/ .*//')"
	    CHECKSUM="$(grep ${LISTSUM^^} "$ZIP_FILE".dgst | grep "$SUM" -o -a | uniq)"
	    if [[ "$SUM" != "$CHECKSUM" ]]; then
	      echo 'error: Check failed! Please check your network or try again.'
	      return 1
	    fi
	  done
	}
	

	decompression() {
	  if ! unzip -q "$1" -d "$TMP_DIRECTORY"; then
	    echo 'error: V2Ray decompression failed.'
	    "rm" -r "$TMP_DIRECTORY"
	    echo "removed: $TMP_DIRECTORY"
	    exit 1
	  fi
	  echo "info: Extract the V2Ray package to $TMP_DIRECTORY and prepare it for installation."
	}
	

	install_file() {
	  NAME="$1"
	  if [[ "$NAME" == 'v2ray' ]] || [[ "$NAME" == 'v2ctl' ]]; then
	    install -m 755 "${TMP_DIRECTORY}/$NAME" "/usr/local/bin/$NAME"
	  elif [[ "$NAME" == 'geoip.dat' ]] || [[ "$NAME" == 'geosite.dat' ]]; then
	    install -m 644 "${TMP_DIRECTORY}/$NAME" "${DAT_PATH}/$NAME"
	  fi
	}
	

	install_v2ray() {
	  # Install V2Ray binary to /usr/local/bin/ and $DAT_PATH
	  install_file v2ray
	  install_file v2ctl
	  install -d "$DAT_PATH"
	  # If the file exists, geoip.dat and geosite.dat will not be installed or updated
	  if [[ ! -f "${DAT_PATH}/.undat" ]]; then
	    install_file geoip.dat
	    install_file geosite.dat
	  fi
	

	  # Install V2Ray configuration file to $JSON_PATH
	  # shellcheck disable=SC2153
	  if [[ -z "$JSONS_PATH" ]] && [[ ! -d "$JSON_PATH" ]]; then
	    install -d "$JSON_PATH"
	    echo "{}" > "${JSON_PATH}/config.json"
	    CONFIG_NEW='1'
	  fi
	

	  # Install V2Ray configuration file to $JSONS_PATH
	  if [[ -n "$JSONS_PATH" ]] && [[ ! -d "$JSONS_PATH" ]]; then
	    install -d "$JSONS_PATH"
	    for BASE in 00_log 01_api 02_dns 03_routing 04_policy 05_inbounds 06_outbounds 07_transport 08_stats 09_reverse; do
	      echo '{}' > "${JSONS_PATH}/${BASE}.json"
	    done
	    CONFDIR='1'
	  fi
	

	  # Used to store V2Ray log files
	  if [[ ! -d '/var/log/v2ray/' ]]; then
	    if id nobody | grep -qw 'nogroup'; then
	      install -d -m 700 -o nobody -g nogroup /var/log/v2ray/
	      install -m 600 -o nobody -g nogroup /dev/null /var/log/v2ray/access.log
	      install -m 600 -o nobody -g nogroup /dev/null /var/log/v2ray/error.log
	    else
	      install -d -m 700 -o nobody -g nobody /var/log/v2ray/
	      install -m 600 -o nobody -g nobody /dev/null /var/log/v2ray/access.log
	      install -m 600 -o nobody -g nobody /dev/null /var/log/v2ray/error.log
	    fi
	    LOG='1'
	  fi
	}
	

	install_startup_service_file() {
	  install -m 644 "${TMP_DIRECTORY}/systemd/system/v2ray.service" /etc/systemd/system/v2ray.service
	  install -m 644 "${TMP_DIRECTORY}/systemd/system/v2ray@.service" /etc/systemd/system/v2ray@.service
	  mkdir -p '/etc/systemd/system/v2ray.service.d'
	  mkdir -p '/etc/systemd/system/v2ray@.service.d/'
	  if [[ -n "$JSONS_PATH" ]]; then
	    "rm" -f '/etc/systemd/system/v2ray.service.d/10-donot_touch_single_conf.conf' \
	      '/etc/systemd/system/v2ray@.service.d/10-donot_touch_single_conf.conf'
	    echo "# In case you have a good reason to do so, duplicate this file in the same directory and make your customizes there.
	# Or all changes you made will be lost!  # Refer: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
	[Service]
	ExecStart=
	ExecStart=/usr/local/bin/v2ray -confdir $JSONS_PATH" |
	      tee '/etc/systemd/system/v2ray.service.d/10-donot_touch_multi_conf.conf' > \
	        '/etc/systemd/system/v2ray@.service.d/10-donot_touch_multi_conf.conf'
	  else
	    "rm" -f '/etc/systemd/system/v2ray.service.d/10-donot_touch_multi_conf.conf' \
	      '/etc/systemd/system/v2ray@.service.d/10-donot_touch_multi_conf.conf'
	    echo "# In case you have a good reason to do so, duplicate this file in the same directory and make your customizes there.
	# Or all changes you made will be lost!  # Refer: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
	[Service]
	ExecStart=
	ExecStart=/usr/local/bin/v2ray -config ${JSON_PATH}/config.json" > \
	      '/etc/systemd/system/v2ray.service.d/10-donot_touch_single_conf.conf'
	    echo "# In case you have a good reason to do so, duplicate this file in the same directory and make your customizes there.
	# Or all changes you made will be lost!  # Refer: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
	[Service]
	ExecStart=
	ExecStart=/usr/local/bin/v2ray -config ${JSON_PATH}/%i.json" > \
	      '/etc/systemd/system/v2ray@.service.d/10-donot_touch_single_conf.conf'
	  fi
	  echo "info: Systemd service files have been installed successfully!"
	  echo "${red}warning: ${green}The following are the actual parameters for the v2ray service startup."
	  echo "${red}warning: ${green}Please make sure the configuration file path is correctly set.${reset}"
	  systemd_cat_config /etc/systemd/system/v2ray.service
	  # shellcheck disable=SC2154
	  if [[ x"${check_all_service_files:0:1}" = x'y' ]]; then
	    echo
	    echo
	    systemd_cat_config /etc/systemd/system/v2ray@.service
	  fi
	  systemctl daemon-reload
	  SYSTEMD='1'
	}
	

	start_v2ray() {
	  if [[ -f '/etc/systemd/system/v2ray.service' ]]; then
	    if systemctl start "${V2RAY_CUSTOMIZE:-v2ray}"; then
	      echo 'info: Start the V2Ray service.'
	    else
	      echo 'error: Failed to start V2Ray service.'
	      exit 1
	    fi
	  fi
	}
	

	stop_v2ray() {
	  V2RAY_CUSTOMIZE="$(systemctl list-units | grep 'v2ray@' | awk -F ' ' '{print $1}')"
	  if [[ -z "$V2RAY_CUSTOMIZE" ]]; then
	    local v2ray_daemon_to_stop='v2ray.service'
	  else
	    local v2ray_daemon_to_stop="$V2RAY_CUSTOMIZE"
	  fi
	  if ! systemctl stop "$v2ray_daemon_to_stop"; then
	    echo 'error: Stopping the V2Ray service failed.'
	    exit 1
	  fi
	  echo 'info: Stop the V2Ray service.'
	}
	

	check_update() {
	  if [[ -f '/etc/systemd/system/v2ray.service' ]]; then
	    get_version
	    local get_ver_exit_code=$?
	    if [[ "$get_ver_exit_code" -eq '0' ]]; then
	      echo "info: Found the latest release of V2Ray $RELEASE_VERSION . (Current release: $CURRENT_VERSION)"
	    elif [[ "$get_ver_exit_code" -eq '1' ]]; then
	      echo "info: No new version. The current version of V2Ray is $CURRENT_VERSION ."
	    fi
	    exit 0
	  else
	    echo 'error: V2Ray is not installed.'
	    exit 1
	  fi
	}
	

	remove_v2ray() {
	  if systemctl list-unit-files | grep -qw 'v2ray'; then
	    if [[ -n "$(pidof v2ray)" ]]; then
	      stop_v2ray
	    fi
	    if ! ("rm" -r '/usr/local/bin/v2ray' \
	      '/usr/local/bin/v2ctl' \
	      "$DAT_PATH" \
	      '/etc/systemd/system/v2ray.service' \
	      '/etc/systemd/system/v2ray@.service' \
	      '/etc/systemd/system/v2ray.service.d' \
	      '/etc/systemd/system/v2ray@.service.d'); then
	      echo 'error: Failed to remove V2Ray.'
	      exit 1
	    else
	      echo 'removed: /usr/local/bin/v2ray'
	      echo 'removed: /usr/local/bin/v2ctl'
	      echo "removed: $DAT_PATH"
	      echo 'removed: /etc/systemd/system/v2ray.service'
	      echo 'removed: /etc/systemd/system/v2ray@.service'
	      echo 'removed: /etc/systemd/system/v2ray.service.d'
	      echo 'removed: /etc/systemd/system/v2ray@.service.d'
	      echo 'Please execute the command: systemctl disable v2ray'
	      echo "You may need to execute a command to remove dependent software: $PACKAGE_MANAGEMENT_REMOVE curl unzip"
	      echo 'info: V2Ray has been removed.'
	      echo 'info: If necessary, manually delete the configuration and log files.'
	      if [[ -n "$JSONS_PATH" ]]; then
	        echo "info: e.g., $JSONS_PATH and /var/log/v2ray/ ..."
	      else
	        echo "info: e.g., $JSON_PATH and /var/log/v2ray/ ..."
	      fi
	      exit 0
	    fi
	  else
	    echo 'error: V2Ray is not installed.'
	    exit 1
	  fi
	}
	

	# Explanation of parameters in the script
	show_help() {
	  echo "usage: $0 [--remove | --version number | -c | -f | -h | -l | -p]"
	  echo '  [-p address] [--version number | -c | -f]'
	  echo '  --remove        Remove V2Ray'
	  echo '  --version       Install the specified version of V2Ray, e.g., --version v4.18.0'
	  echo '  -c, --check     Check if V2Ray can be updated'
	  echo '  -f, --force     Force installation of the latest version of V2Ray'
	  echo '  -h, --help      Show help'
	  echo '  -l, --local     Install V2Ray from a local file'
	  echo '  -p, --proxy     Download through a proxy server, e.g., -p http://127.0.0.1:8118 or -p socks5://127.0.0.1:1080'
	  exit 0
	}
	

	main() {
	  check_if_running_as_root
	  identify_the_operating_system_and_architecture
	  judgment_parameters "$@"
	

	  install_software "$package_provide_tput" 'tput'
	  red=$(tput setaf 1)
	  green=$(tput setaf 2)
	  aoi=$(tput setaf 6)
	  reset=$(tput sgr0)
	

	  # Parameter information
	  [[ "$HELP" -eq '1' ]] && show_help
	  [[ "$CHECK" -eq '1' ]] && check_update
	  [[ "$REMOVE" -eq '1' ]] && remove_v2ray
	

	  # Two very important variables
	  TMP_DIRECTORY="$(mktemp -d)"
	  ZIP_FILE="${TMP_DIRECTORY}/v2ray-linux-$MACHINE.zip"
	

	  # Install V2Ray from a local file, but still need to make sure the network is available
	  if [[ "$LOCAL_INSTALL" -eq '1' ]]; then
	    echo 'warn: Install V2Ray from a local file, but still need to make sure the network is available.'
	    echo -n 'warn: Please make sure the file is valid because we cannot confirm it. (Press any key) ...'
	    read -r
	    install_software 'unzip' 'unzip'
	    decompression "$LOCAL_FILE"
	  else
	    # Normal way
	    install_software 'curl' 'curl'
	    get_version
	    NUMBER="$?"
	    if [[ "$NUMBER" -eq '0' ]] || [[ "$FORCE" -eq '1' ]] || [[ "$NUMBER" -eq 2 ]]; then
	      echo "info: Installing V2Ray $RELEASE_VERSION for $(uname -m)"
	      download_v2ray
	      if [[ "$?" -eq '1' ]]; then
	        "rm" -r "$TMP_DIRECTORY"
	        echo "removed: $TMP_DIRECTORY"
	        exit 1
	      fi
	      install_software 'unzip' 'unzip'
	      decompression "$ZIP_FILE"
	    elif [[ "$NUMBER" -eq '1' ]]; then
	      echo "info: No new version. The current version of V2Ray is $CURRENT_VERSION ."
	      exit 0
	    fi
	  fi
	

	  # Determine if V2Ray is running
	  if systemctl list-unit-files | grep -qw 'v2ray'; then
	    if [[ -n "$(pidof v2ray)" ]]; then
	      stop_v2ray
	      V2RAY_RUNNING='1'
	    fi
	  fi
	  install_v2ray
	  install_startup_service_file
	  echo 'installed: /usr/local/bin/v2ray'
	  echo 'installed: /usr/local/bin/v2ctl'
	  # If the file exists, the content output of installing or updating geoip.dat and geosite.dat will not be displayed
	  if [[ ! -f "${DAT_PATH}/.undat" ]]; then
	    echo "installed: ${DAT_PATH}/geoip.dat"
	    echo "installed: ${DAT_PATH}/geosite.dat"
	  fi
	  if [[ "$CONFIG_NEW" -eq '1' ]]; then
	    echo "installed: ${JSON_PATH}/config.json"
	  fi
	  if [[ "$CONFDIR" -eq '1' ]]; then
	    echo "installed: ${JSON_PATH}/00_log.json"
	    echo "installed: ${JSON_PATH}/01_api.json"
	    echo "installed: ${JSON_PATH}/02_dns.json"
	    echo "installed: ${JSON_PATH}/03_routing.json"
	    echo "installed: ${JSON_PATH}/04_policy.json"
	    echo "installed: ${JSON_PATH}/05_inbounds.json"
	    echo "installed: ${JSON_PATH}/06_outbounds.json"
	    echo "installed: ${JSON_PATH}/07_transport.json"
	    echo "installed: ${JSON_PATH}/08_stats.json"
	    echo "installed: ${JSON_PATH}/09_reverse.json"
	  fi
	  if [[ "$LOG" -eq '1' ]]; then
	    echo 'installed: /var/log/v2ray/'
	    echo 'installed: /var/log/v2ray/access.log'
	    echo 'installed: /var/log/v2ray/error.log'
	  fi
	  if [[ "$SYSTEMD" -eq '1' ]]; then
	    echo 'installed: /etc/systemd/system/v2ray.service'
	    echo 'installed: /etc/systemd/system/v2ray@.service'
	  fi
	  "rm" -r "$TMP_DIRECTORY"
	  echo "removed: $TMP_DIRECTORY"
	  if [[ "$LOCAL_INSTALL" -eq '1' ]]; then
	    get_version
	  fi
	  echo "info: V2Ray $RELEASE_VERSION is installed."
	  echo "You may need to execute a command to remove dependent software: $PACKAGE_MANAGEMENT_REMOVE curl unzip"
	  if [[ "$V2RAY_RUNNING" -eq '1' ]]; then
	    start_v2ray
	  else
	    echo 'Please execute the command: systemctl enable v2ray; systemctl start v2ray'
	  fi
	}
	

	main "$@"